It is clear that the theme with with this one is "if it ain't broke don't fix it", Prime 2 pick's up right after prime 1 left and with the short time between them is clearly on the same page as the first one.

It has some new twists and improvements, like how the dark/light world system makes for a better navigation than using that one planet as a "metro station", the use of dark/light ammunition makes for interesting choices , the addition of the screw attack and the sanctuary fortress being the best area so far.

On it's downsides the way the bosses got sammus powers gets predictable quickly and although the Spider ball one it's probably the most interesting boss fight yet in general they're meh. Also for the second half of the game you'll be so lost, there's no indicator of many upgrades and places you should go and that can be frustrating if you're not using a guide, even though that's probably a problem of it's time.

Overall, it's still a blast to play trough this game, navigate back and forth through the areas, it works like a charm.